permeance和permeability

2008年9月15日 - permeability就是渗透系数,渗透系数乘以厚度=permeance,渗透速率;.1什么是selectivity?如果说O2/N2的selectivity是10,代表了什么意思?2什么是permeabi...

Please note that it´s technically impossible to indicate the permeance for a certain material. This is: the ratio between both concepts regards the thickness o...